Tieton Dam

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Tieton Dam
Tieton Dam from Lava Point, 2015.jpg
Tieton Dam and Rimrock Lake from Lava Point
Location Yakima County, Washington, USA
Coordinates 46°39′23″N121°7′46″W / 46.65639°N 121.12944°W / 46.65639; -121.12944 Coordinates: 46°39′23″N121°7′46″W / 46.65639°N 121.12944°W / 46.65639; -121.12944
Opening date 1925 [1]
Operator(s) United States Bureau of Reclamation [1]
Dam and spillways
Impounds Tieton River
Height 319 feet (97 m) [1]
Length 920 feet (280 m) [1]
Dam volume 2,049,000 cu ft (58,000 m3)
Creates Rimrock Lake
Total capacity 203,600 acre feet (0.251 km3) [1]
Active capacity 198,000 acre feet (0.244 km3) [1]
Catchment area 184 square miles (477 km2) [1]
Surface area 2,674 acres (10.8 km2) [1]

Tieton Dam is an earth and concrete type dam on the Tieton River in Yakima County, in the U.S. state of Washington. The dam began operation in 1925. Its reservoir, Rimrock Lake, has a total capacity of 203,600 acre feet (0.2511 km3) with a normal operating capacity of 198,000 acre feet (0.244 km3) to provides water for agricultural irrigation. [1] This dam is a component of the Yakima Project. [2] Upstream from the dam, the river is impounded by Clear Creek Dam, another element of the Yakima Project. About 8 miles (13 km) downstream from the dam, the Tieton River is tapped for the Tieton Main Canal.

Dam A barrier that stops or restricts the flow of surface or underground streams

A dam is a barrier that stops or restricts the flow of water or underground streams. Reservoirs created by dams not only suppress floods but also provide water for activities such as irrigation, human consumption, industrial use, aquaculture, and navigability. Hydropower is often used in conjunction with dams to generate electricity. A dam can also be used to collect water or for storage of water which can be evenly distributed between locations. Dams generally serve the primary purpose of retaining water, while other structures such as floodgates or levees are used to manage or prevent water flow into specific land regions. The earliest known dam is the Jawa Dam in Jordan, dating to 3,000 BC.

Tieton River river in the United States of America

The Tieton River is a tributary of the Naches River, in Yakima County, Washington in the United States.

Yakima County, Washington County in the United States

Yakima County is a county in the U.S. state of Washington. As of the 2010 census, its population was 243,231. The county seat and largest city is Yakima. The county was formed out of Ferguson County in January 1865 and is named for the Yakama tribe of Native Americans.

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